<template>
  <!-- 头部部分 -->
  <header class="header">
    <h1>todos</h1>
    <input class="new-todo" placeholder="请输入任务名称" autofocus
    v-model.trim="name" 
    @keyup.enter="add"
    @keyup.esc="name=''"
    />
  </header>
</template>

<script>
export default {
  data() {
    return {
      name:''
    };
  },
  methods: {
    add () {
      if (this.name==='') return alert('请输入信息')
      this.$emit('add-event',this.name)
      this.name=''
    }
  },
};
</script>

<style></style>
